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arXiv 2411.08232cs.LGmath.OC
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从观测中模仿学习:一种自回归混合专家方法

Imitation Learning from Observations: An Autoregressive Mixture of Experts Approach

KU Leuven(鲁汶大学);Siemens Digital Industries Software(西门子数字工业软件)

Renzi Wang, Flavia Sofia Acerbo, Tong Duy Son, Panagiotis Patrinos

AI总结:

本文提出一种基于自回归混合专家模型的两阶段从观测中模仿学习方法,结合Lyapunov稳定性约束确保模型渐近稳定性,并在自动驾驶数据集上验证了其建模复杂非线性动力学的有效性。

摘要:

本文提出了一种从观测中模仿学习的新方法,其中部署了自回归混合专家模型来拟合底层策略。模型参数通过两阶段框架学习。利用现有的动力学知识,框架的第一阶段估计控制输入序列,从而降低问题复杂度。在第二阶段,使用估计的控制输入序列,通过求解正则化最大似然估计问题来学习策略。我们进一步扩展了学习过程,引入Lyapunov稳定性约束,以确保所识别模型的渐近稳定性,从而实现准确的多步预测。使用从人类演示中收集的两个自动驾驶数据集验证了所提框架的有效性,证明了其在建模复杂非线性动力学中的实际适用性。

英文摘要:

This paper presents a novel approach to imitation learning from observations, where an autoregressive mixture of experts model is deployed to fit the underlying policy. The parameters of the model are learned via a two-stage framework. By leveraging the existing dynamics knowledge, the first stage of the framework estimates the control input sequences and hence reduces the problem complexity. At the second stage, the policy is learned by solving a regularized maximum-likelihood estimation problem using the estimated control input sequences. We further extend the learning procedure by incorporating a Lyapunov stability constraint to ensure asymptotic stability of the identified model, for accurate multi-step predictions. The effectiveness of the proposed framework is validated using two autonomous driving datasets collected from human demonstrations, demonstrating its practical applicability in modelling complex nonlinear dynamics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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